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JulPatternFormatter.sarl
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JulPatternFormatter.sarl
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/*
* $Id$
*
* SARL is an general-purpose agent programming language.
* More details on http://www.sarl.io
*
* Copyright (C) 2014-2020 the original authors or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.sarl.sre.services.logging.jul
import java.io.PrintWriter
import java.io.StringWriter
import java.util.Date
import java.util.logging.Formatter
import java.util.logging.LogRecord
/** JUL formatter based on pattern.
*
* <p>The format string may contains one of the following elements:<ul>
* <li><code>%1</code>: the date,</li>
* <li><code>%2</code>: the name of the calling function,</li>
* <li><code>%3</code>: the name of the logger,</li>
* <li><code>%4</code>: the logging level,</li>
* <li><code>%5</code>: the message, and</li>
* <li><code>%6</code>: the throwable.</li>
* </ul>
*
* @author $Author: sgalland$
* @version $FullVersion$
* @mavengroupid $GroupId$
* @mavenartifactid $ArtifactId$
* @since 0.11
*/
class JulPatternFormatter extends Formatter {
val pattern : String
val dat = new Date
new (pattern : String) {
assert !pattern.isNullOrEmpty
this.pattern = pattern
}
def format(record : LogRecord) : String {
this.dat.time = record.getMillis
val source = new StringBuilder
val scn = record.sourceClassName
if (!scn.nullOrEmpty) {
source.append(scn)
val smn = record.sourceMethodName
if (!smn.isNullOrEmpty) {
source.append(" ")
source.append(smn)
}
} else {
source.append(record.loggerName)
}
var message = record.formatMessage
var throwable : String
if (record.thrown !== null) {
val sw = new StringWriter
try (val pw = new PrintWriter(sw)) {
pw.println
record.thrown.printStackTrace(pw)
}
throwable = sw.toString
} else {
throwable = ""
}
return String::format(
this.pattern,
dat, source,
record.loggerName,
record.level.localizedName,
message,
throwable)
}
}